Printing machine



FIG. 1 is a perspective view of a printing machine showing our new design;

FIG. 2 is a top plan view of a printing machine showing our new design;

FIG. 3 is a left side elevational view of a printing machine showing our new design;

FIG. 4 is a right side elevational view of a printing machine showing our new design;

FIG. 5 is a rear elevational view of a printing machine showing our new design; and

FIG. 6 is a front elevational view of a printing machine showing our new design. 

The ornamental design of a printing machine, as shown. 